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Finding the Fourth Proportional to 63,998.80, 95,998.20 and 36,005.20

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Solution

The fourth proportional to 63,998.80, 95,998.20 and 36,005.20 is: 54,007.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,998.80 : 95,998.20 = 36,005.20 : x
  2. Step 2: Convert to fraction form
    63,998.80/95,998.20 = 36,005.20/x
  3. Step 3: Cross multiply
    63,998.80x = 95,998.20 × 36,005.20
  4. Step 4: Simplify right side
    63,998.80x = 3,456,434,390.64
  5. Step 5: Solve for x
    x = 3,456,434,390.64/63,998.80
  6. Step 6: Final answer
    x = 54,007.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.